单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application contains the following code segment. public class CapabilityEvaluator { public static bool ChkScreenSize（ System.Web.Mobile.MobileCapabilities cap， String arg） { int screenSize = cap.ScreenCharactersWidth * cap.ScreenCharactersHeight； return screenSize < int.Parse（arg）； } | English | Chinese | Japan | Korean | - 76 - Test Information Co.， Ltd. All rights reserved. } You add the following device filter element to the Web.config file. <filter name="FltrScreenSize" type="MyWebApp.CapabilityEvaluator，MyWebApp" method="ChkScreenSize" /> You need to write a code segment to verify whether the size of the device display is less than 80 characters. Which code segment should you use？（）
单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create an AJAX-enabled Web form by using the following code fragment. When the updFirstPanel UpdatePanel control is updated， a dynamic client script is registered. You write the following code segment in the code-behind file of the Web form. （Line numbers are included for reference only.） 01 Protected Sub Page_Load（ByVal sender As Object， _ ByVal e As EventArgs） 02 If Not IsPostBack Then 03 Dim generatedScript As String = _ | English | Chinese | Japan | Korean | - 75 - Test Information Co.， Ltd. All rights reserved. ScriptGenerator.GenerateScript（） 04 05 End If 06 End Sub You need to ensure that the client-script code is registered only when an asynchronous postback is issued on the updFirstPanel UpdatePanel control. Which code segment should you insert at line 04？（）
单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create an AJAX-enabled Web form by using the following code fragment. <asp：ScriptManager ID="scrMgr" runat="server" /> <asp：UpdatePanel runat="server" ID="updFirstPanel" UpdateMode="Conditional"> <ContentTemplate> <asp：TextBox runat="server" ID="txtInfo" /> | English | Chinese | Japan | Korean | - 73 - Test Information Co.， Ltd. All rights reserved. <asp：Button runat="server" ID="btnSubmit" Text="Submit" /> </ContentTemplate> </asp：UpdatePanel> <asp：UpdatePanel runat="server" ID="updSecondPanel" UpdateMode="Conditional"> <ContentTemplate> ... </ContentTemplate> </asp：UpdatePanel> When the updFirstPanel UpdatePanel control is updated， a dynamic client script is registered. You write the following code segment in the code-behind file of the Web form. （Line numbers are included for reference only.） 01 protected void Page_Load（object sender， EventArgs e） 02 { 03 if（IsPostBack） 04 { 05 string generatedScript = ScriptGenerator.GenerateScript（）； 06 07 } 08 } You need to ensure that the client-script code is registered only when an asynchronous postback is issued on the updFirstPanel UpdatePanel control. Which code segment should you insert at line 06？（）
